Air-port closure.



E. H.'ELLISON.

MR PORT CLOSURE.

Avrucmon min-wu re'. 19u.

1,274,151. Patented July 30,1918.

mi Z ff 'UNITED STATESPATENT-OFF1GE# EDWARD H. ELLIsoN, oFJAMEs'rowimfNEw vomi, Assieiron To fiNfrEnNiirioNAi. 'j cnsmnm'r COMPANY, oF JAMEs'roWN, NEW YORK, A ooaPoBnTIoNor'NEw Yonx.

To all whom it may concern." Y

Be it known that I, VEDWARD H. ELLISON, a citizen` of the United States, residing at Jamestown, in the` county of Chautauqua, State of New York, have invented certain new and useful Improvements infAir-.Port Closures, of which the following is a description, reference being hadto the accom# panying drawing, and to thefiguresof reference marked thereon.- Y

The invention relates to new andy useful improvements in air port closures and lmore particularly to an air port closure which is capable of being swung about a -hingeand which may also befirmly clamped inplace when closed so as t0 make a tight joint all the way around the closure. j Y

An object of the invention isto yprovide the means for hinging the door for closing the air port which will permit ,the door at the side whereV it is supported-by the-hinge to be forced against the supporting -fraine so that the closure will be water tight all the way around.' Y 'Y Y A further object of( the invention is to provide aconstruction of the above character wherein the door is mounted so as `to swing about a vertical axis and wherein the sup-` porting means for-the door is so constructed as to provide a irm and durablesupportfor the door and at the same time topermitthe doorto be clamped tightly against lthe Vseat about the air port; 'Y '.f f These and .other objects willvin' partv be obvious, and will in part'behereinafter more fully described. Y j y In the drawings, which show` by way of' illustration one embodiment' ofthe invention,

Figure 1 closure einbodyingmy improvement; Y Fig. 2 is a sectional view on thevline 2-2 of Figl; .Y

. Fig. 3 is a sectionalview on the linel 3--3 of Figl; Y j Fig. 4 is a sectionalview on' the line ofFig;1;and` Y Fig. 5 is a perspectiveview of the parts s hown in Fig. 4, said parts being separated.

The invention Vbroadly consists in a supporting frame having an opening formed with a seating rib. extending all the way around the edge thereof, this opening isclosed by a door which is provided with a gasket adapted to engage said rib. The Vdoor Specication of Iletters Patent.

is a front viewof 'anair port Ain-rom* crio'sUnE.

Patented Julyaaieis.

Application illed July 18, 1917. Serial No. 181,213.

is mounted to swingy about a vertical axis. The door is provided with a bolt whichy is rigid with the door structure andthis bolt.

is mounted in spacedears having longitudinal slots through which the bolt'eXtends. Adjacent each supporting ear there is a sliding-memberrwhich is Vforced outwardly by a spring and' this sliding member is formed with a bearing socket adapted4 to eir- Vgagethe bolt abovereferred to. These sliding members normally hold the boltat the outer ends of the elongatedl slots and thev door'swingsin the Abearings formed by the ends'of the slotsand the sockets inthe slidf ing member. l Clamping devices are alsovprovided for movinggthervdoor bodily so as t0.v

cause the gasketto -engagelthe rib andthe sliding members yield to permit ythisbodily movement ofthe door. v.

. Referring more in Ydetail tothe drawings, my improved air port jclosure 1 consists, fof a metal frame l, which .is formed. with.. an

opening 2 and laterally'l extending flanges, one ofwhichis movable relative to the 'frame proper and these flanges are clamped tofgether by suitable bolts thus firmly securing the frame to the structure in which the air. port is formed. V.'I`helopening 2 is closed by a'door 3. Extending laterally Vfrom the door are integral. ears .Rigidly'mountedin these ear's'isv a supporting :bolt5. Rigidly Supported by the" frame r1 are two spaced brackets 6 6, each bracket is formed; withan elongated slotff'lhebolt' extends through thesey slots'and projects beyond the brackets. .Adjacent each ,bracket vis afslid-v ing memberY 8. IEach. sliding member isv mounted in a sleeve 9 which is rigidly -at'4 tached to or formed integral with the frame 1. Aj spring'lO :located inthe sleeve, normally 'forces 1 theV sliding "member Q82 outwardly. Suitable vmeaii'sanay be 'provided for limiting the outward Ymovement Pof `the sliding memberfS.v Said slidingv member `S is formed withl a socket l1 at its"v outer end. The bolt 5 is cut :away slightly'back fromr each end thereof, as indicated at V12 to re-l ceive respectively, the sock'etedends of the sliding umembers 8.". The springs normally forcethe sliding members. outwardly so that the elongated slots 7 and the inner ends of the sockets forni the bearings for the bolt -of the door. `'1`he wei,, ;ht of the door of course in part rests on the lower bracket 6. The door swings about a vertical axis centrally through this bolt 5. rlhis makes a very firm and durable support for the door and prevents any possible rattling.

The door is preferably formed with a glass panel indicated at 13 in the drawings. This panel is seated in the door struc-ture and is held therein by suitable clamping ring 14. The door is also provided with a dovetail recess 15 in which is seatedv a gasket 1G. The frame 1 is formed with a rib 17, which projects outwardly from the frame and the gasket 1G is adapted to engage this rib so that the ribwill be embedded in the gasket when the door is properly closed, and thus form a tight joint all the way around the door. Vhen the door is closed, it is moved bodily by suitable clamping means to bring about this seating of the gasket against the rib. The door proper is formed with projecting lugs 18-18, ay bolt 19 is rigidly carried by the frame 1 and these lugs 1'8-18 are spacedl so asl to straddle the bolt when the door swings to closed position. A winged nut 20 threaded onto the bolt 19 overlaps the lugs and as this nut is turned onto the bolt the lugs 18 will be forced toward the frame. The sliding members 18 yielding to permit this movement of the door toward the frame. The door is also provided with projecting lugs 21-21l disposed on the opposite side from the center of the door from the lugs 18-18. Each of the lugs 21 has a forked end 22. A pivoted bolt 23 carried by a bracket 24 is adapted to be swung horizontally into this forked end of the lug and serves as a' means for forcing the door bodily towardy the frame. Through these clamping bolts the door may be firmly seated so as to form a tight joint all the way around. By releasing these bolts, then the door may be readily swung on its supporting bolt and the sliding members 18 will force the bolt outwardly to the end of the elongated slots.

From the above description it will be apparent that I have provided an air port vstructure which may be cheaply made and which is very durable and wherein the door is supported so that it may be easily swung to closed position or open,/and. when in closed position it kmay be moved bodily against its seat to form a tight joint.

It is obvious that minor changes in the details of construction may be made without departingfrom the spirit of invention as set forth in the appended claims.

`What I claim is:

1. An air port closure comprising a supporting frame having an opening, a door for closing the opening and means for supporting said door including a bolt carried by the door, spaced brackets having elongated slots for said bolt, sliding members having sockets in their outer ends adapted to engage said bolt, means independent of the brackets for supporting and guiding the sliding members and springs for forcing said sliding members outwardly for holding the bolt yieldingly against `the outer ends of said slots, and means for moving the door bodily against its seat for closing the same.

'2. Anair port closure comprising a supporting frame having an opening, a door for closing the opening', means for supporting the door including lugs. carried by the door, a vertically disposed bolt mounted in said lugs, brackets carried by the frame and having elongated slots for the bolt, a sliding membery adjacent eachbracket, means independent of the brackets for supporting. and guiding said slidingl members, said sliding members having sockets in the outer ends, sleeves carried by the frame for said sliding members, a springv for forcing each sliding member outwardly ,to cause its outer end to engage the bolt, and clamping means for moving the door bodily against its seat for closing the same.

3. An air port closurecomprising a supporting frame having a-n opening and a seating rib for the door, a door for closing the opening, a gasket carriedby the door and adapted t-o engage said rib, lugs projecting horizontally from the door, a bolt mounted inv said lugs, spaced bracketsv carried by the frame and havingl elongated slots through which said bolt` passes, said slots beingelongated in a direction perpendicular to the planeof the frame, a sleeve adjacent each bracket, a sliding member in each sleeve, a spring in the sleeve for forcing the sliding member outwardly, each sliding member having a socket in its outer end adapted to engage the bolt, said bolt beingcut away to receivey the socketed end, spaced lugs projecting from the door between the brackets when the door is closed, a bolt fixed to the frame and having a winged nut adaptedl to engage said spaced lugs, a lug on the opposite side of the door from thespaced lug and having a forked end, a swinging bolt carriedy by the frame adapted to enga-ge said forked end and a winged nut for said bolt, said winged nuts serving asa means for shifting the door bodily to engage the rib on the frame, and said sliding members yieldingto permit the bodily movement of the door.

In testimony whereof, I aiiX my signature.

EDWARD H. ELLISON.

Copies of this patent may be obtained for five cents each, luy-addressing the Commissioner of Patents,

Washington, D. G. 

